Read about the first Physicians Health Study at phs.bwh.harvard.edu. a. Explain whether it was (i) an experiment
Question:
a. Explain whether it was (i) an experiment or an observational study and (ii) a retrospective or prospective study.
b. Identify the response variable and the explanatory variable(s), and summarize results.
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a This was i an experiment and it was ...View the full answer
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